ACE RTA
From ALttP Speedrunning Wiki
ACE RTA is a category where you beat using Arbitrary Code Execution. Basically we're writing code to SNES memory, then making the SNES execute our code to go to the Triforce Room.
Route
Magic
- Talk to Uncle
- Stair clip or SQ for EG
- Arm void EG at key guard 1
- Rescue Zelda
- Get hit to re-enter EG (can SQ to respawn BnC)
- Walk to sanc
- After cutscene, transition up
- Grab Somaria
- Grab full magic
- S+Q to Sanctuary
Bombs
- Walk to Kak, and set up the Search Index to 0x8 by using Lantern and Somaria
- 1. Use lamp 3 times (sets Search Index to 0x10)
- 2. Put out your sword, and with a certain rythm press Y 4 times (placing and popping a Somaria twice)
- 3. Release B, and do the last step again. I find the last Y press should be slightly delayed for the second time you do this.
- If you press Y while a Somaria is read to be popped, but nothing happens, it means you mistimed your Y presses, and need to reset, as you don't have enough Magic with this route.
- By using the practice hack w/ACE hud (see below), you can see what the Search Index is set to on the top left number.
- Jump into Kak cave
- Place a Somaria southwards as you land
- Grab Bombs chest
- Misslot a bomb into slot 6, and make it blow up the bombable wall
- 1. Position yourself ready to put down a bomb on the bombable wall
- 2. Hold your sword out
- 3. Pop the Somaria and Menu to Bombs
- 4. Place 2 bombs down
- 5. Pick up one bomb, and throw it away
- Grab the 3 rupee chests (need 50 rupees).
- Go out and buy 10 bombs.
- S+Q to Sanc
Setting up memory for ACE
- Walk to the screen with the cave to Hera and Tree rupees. You want to transition on the right side of it.
- Walk immediately towards the Rupee tree, and grab it. You can avoid the birds by doing a <^ before grabbing the tree (see vod).
- Grab the Hoarder bush. You can throw it immediately if you want, the important thing is to activate the Hoarder.
- Walk towards the transition southwards, and transition only after the hoarder is done giving away rupees (you can transition as soon as he poofs).
- Sometimes he will walk ^> quite a bit, and if you don't follow him rightwards, he might despawn, and you need to set everything up again. So make sure to scroll the screen with him if he does that.
- The main thing we're accomplishing here, is setting $0C9A-$0CA0 to 0x0A.
- This is an array (with 16 slots) where the game puts "which map was this Sprite spawned on".
- You can see these values in the ACE practice hack on the bottom line of numbers (16 numbers, 2 characters each).
- Transition south, then left. Slash your sword (this is just a waiting buffer) once when you enter, and then go back to the previous screen.
- This clears out all the $0A's that were left in slot 7+. We need only slot 0-6 to have the value $0A.
- You need to pick up at least one bush to clear slot 14, so you can throw it at the guard, then do one slash to kill him.
Doing the ACE
This involves standing on specific coordinates, in a specific direction, and using a combination of Somaria, Somaria pop's and Spins.
When I write to "Stand on x89", I mean to place Link on the Y coordinate that ends with "89" (hex).
You will need to use cues for these in a run - I will mention some of the ones I use. If you end up using camera cues, it's important that you do not touch a Somaria block at all. Moving a Somaria block will mess with the camera's alignment, and your cues will suddenly not work.
- Stand on x89, facing ^: Hold sword out; Somaria; Pop; Somaria; Spin
- Cue: Shadow one pixel above the green line.
- Stand on x89, facing ^: Hold sword out; Pop; Somaria; Spin
- Stand on x98, facing v: Hold sword out; Pop; Somaria; Spin
- Pop the somaria afterwards (this is just to get rid of it, coords etc. doesn't matter)
- Cue: Hat aligned with the big rocks.
- Stand on x18, facing v: Hold sword out; Somaria; Pop; Somaria; Spin
- Cue: You can use a bush to align with x18 easily. See vod.
- You can also put down the Somaria first, it doesn't matter.
- You should also pop the Somaria afterwards. Usually the next step fails if you reuse the same Somaria.
- Stand on x65, facing ^: Hold sword out; Somaria; Pop; Spin
- Cue: Shadow one pixel above the grass roots.
- Stand on x51, facing ^: Put down Somaria (do not pop it!)
- Cue: Shadow aligned with the top of the green grass near the bottom-most flower.
- Stand on x44, facing v: Pop Somaria
- Cue: Hat aligned with the grass roots near the top-most flowers.
- Note that this bomb explosion that spawns will only be there for a limited time. When it's gone, you need to have completed the full ACE, if not you'll need to reset.
- Don't move. Wait for all sparks to go off screen, then put down 2 bombs.
- You should watch the bottom-most spark. Make sure it's fully gone before putting down your bombs.
- You should also put them down pretty quickly, and immediately go on to the next step.
- Your time is very limited after this step, since either the bombs will explode and hit Link, or the bomb explosion will despawn, if you're wasting more than 5-9 frames after this step. Use select buffers from now on.
- Walk upwards (while holding a spin) until you're on x16, then spin.
- Cue: I use a camera cue here, it's bad, feel free to find your own.
- Walk downwards, start a spin on the way, until you're at x71, then spin.
- Cue: I have 3 cues. 2 camera cues (bad) and one based on Link's shadow (one pixel below the dark green grass).